Re: Copy same line item value to other/nexdt list item in same module
Consider a line item/property for your list: Previous Member.
Line Item 2 Formula: 'Line Item 1'[lookup: Previous Member] will get you what you want.
That being said, the biggest question is how to populate the line item/property Previous Member. You can 1) manually populate it, 2) manipulate your List coding so that it's easy to find the "previous" member. For 2), for a simple coding where list members go 1, 2, 3..., Previous Member = finditem(<LIST., text(value(code(item(<LIST>))) -1)). The bigger point is you have to find some way to create an order for your list. (There's a natural order of course, if you're using a numbered list and you can tease out the #, but this isn't really best practice and has certain risks.)